Question

Two monochromatic coherent point sources $S_1$ and $S_2$ are separated by a distance $L$. Each source emits light of wavelength $\lambda$, where $L >> \lambda$. The line $S_1 S_2$ when extended meets a screen perpendicular to it at a point $A.$

Accepted Answer

The interference fringes on the screen are circular in shape

Answer

The interference fringes on the screen are straight lines perpendicular to the line $S_1 S_2 A$

Answer

The point $A$ is an intensity maxima if $L=n \lambda / 2$

Answer

The point $A$ is always an intensity maxima for any separation $L$

NEET UG PHYSICS MCQ: WAVE OPTICS

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